Description

Vinyl Terminated Trifluoropropylmethylsiloxane, Dimethylsiloxane Copolymer is a specialized fluorosilicone polymer engineered to deliver a unique combination of chemical resistance, low-temperature flexibility, and surface activity. This material matters for formulators seeking to enhance the performance of high-end elastomers, coatings, and release agents under extreme environmental and chemical stress. It is primarily needed by manufacturers in the aerospace, automotive, and specialty chemical industries for creating seals, gaskets, and high-performance mold release formulations.

Application

• Fluorosilicone Rubber (FVMQ) Base Polymer: Serves as a key reactive intermediate for manufacturing high-performance fluorosilicone elastomers with excellent fuel, oil, and solvent resistance.
• High-Temperature & Chemical-Resistant Sealants: Used in formulating gaskets, O-rings, and seals for aerospace, automotive, and industrial equipment exposed to aggressive fluids.
• Specialty Mold Release Agents: Provides excellent non-stick properties and thermal stability for demanding molding processes, including for composites and high-temperature plastics.
• Surface Modification & Additive: Imparts water, oil, and soil repellency to textiles, plastics, and coatings due to its low surface energy.
• Adhesive & Potting Compound Formulation: Enhances the flexibility and environmental resistance of adhesives and encapsulation materials for electronics.
• Lubricant & Grease Thickener: Acts as a base fluid or additive for specialty lubricants requiring wide temperature range operation and chemical inertness.

Basic Information

Product Name	Vinyl Terminated Trifluoropropylmethylsiloxane, Dimethylsiloxane Copolymer
CAS No.	68951-98-4
Molecular Formula	(C6H9F3OSi)n(C2H6OSi)m
Molecular Weight	Varies by chain length and monomer ratio. Contact for details.
Synonyms	Vinyl-Terminated Poly(trifluoropropylmethylsiloxane-co-dimethylsiloxane); Fluorosilicone Fluid, Vinyl Terminated; Poly[(3,3,3-trifluoropropyl)methylsiloxane-co-dimethylsiloxane], vinyl terminated; FVMQ Vinyl Gum; Vinyl-Functional Fluorosilicone Oil; Trifluoropropylmethylsiloxane-Dimethylsiloxane Copolymer, Vinyl End-blocked; Vinyl-PDMS-PTFPS Copolymer
EINECS	Contact for details.

Quality Control

Our Vinyl Terminated Trifluoropropylmethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including determination of vinyl content, molecular weight distribution, viscosity, and purity, to ensure consistent performance and reliable supply. Certificates of Analysis (COA) documenting key specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame. For long-term storage, consider purging the container headspace with an inert gas such as nitrogen or argon.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Viscosity (25°C)	Specification available upon request
Vinyl Content (mmol/g)	Specification available upon request
Trifluoropropylmethylsiloxane Content	Specification available upon request
Volatile Matter	< 1.0%
Identification (IR)	Conforms to structure

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.